22273429 has 4 divisors (see below), whose sum is σ = 22494060. Its totient is φ = 22052800.

The previous prime is 22273423. The next prime is 22273439. The reversal of 22273429 is 92437222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12180100 + 10093329 = 3490^2 + 3177^2 .

It is a cyclic number.

It is not a de Polignac number, because 22273429 - 2⁹ = 22272917 is a prime.

It is a super-2 number, since 2×22273429² = 992211278836082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22273429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110164 + ... + 110365.

It is an arithmetic number, because the mean of its divisors is an integer number (5623515).

Almost surely, 2^22273429 is an apocalyptic number.

It is an amenable number.

22273429 is a deficient number, since it is larger than the sum of its proper divisors (220631).

22273429 is a wasteful number, since it uses less digits than its factorization.

22273429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220630.

The product of its digits is 12096, while the sum is 31.

The square root of 22273429 is about 4719.4733816391. The cubic root of 22273429 is about 281.3600034551.

The spelling of 22273429 in words is "twenty-two million, two hundred seventy-three thousand, four hundred twenty-nine".